tyre pressure

Need technical Q/A then you're in the right place

Moderator: martauto

User avatar
ifty
E30 Zone Newbie
E30 Zone Newbie
Posts: 84
Joined: Mon Oct 24, 2005 11:00 pm
Location: Leicester

Post Wed Sep 27, 2006 6:31 pm

Hello all

Whats the correct tyre pressure for the 205/40/17 tyre on a 325i convertable.

Many thanks
placey
E30 Zone Camper
E30 Zone Camper
Posts: 1170
Joined: Sun Jan 09, 2005 11:00 pm
Location: portsmouth

Post Sat Sep 30, 2006 5:42 pm

the general advice is to increase pressure by 1lb for every wheel size increase, with 13s at 28 (rear) and 29 (front) so your 17s would be 32 (rear) and 33 (front).

i run my 16s at 32 all round and they seem to wear evenly enough, but i do carry around a bit more weight in my boot than most.

paul
i saw a doctor and she gave me some pills....
Image
FBF
E30 Zone Regular
E30 Zone Regular
Posts: 487
Joined: Sun Aug 27, 2006 11:00 pm
Location: gatwick

Post Sat Sep 30, 2006 5:58 pm

ive found 36 in the rear of my set of 17's very good for grip. i prefer a little less in the front though as i like to feel the road. without it being too harsh i run 33 in the front. if you are serious about set up dont rely on petrol station pumps to get the pressure right they are so inaccurate.. they are ok for making sure your pressures match and thats about it.
Image
im so sexy justin brought me back 5 times
User avatar
ifty
E30 Zone Newbie
E30 Zone Newbie
Posts: 84
Joined: Mon Oct 24, 2005 11:00 pm
Location: Leicester

Post Sat Sep 30, 2006 7:43 pm

thanks guys for the information,i was using 34 back and front think i will try 36R and 33F and how it goes.